421429361 has 2 divisors, whose sum is σ = 421429362. Its totient is φ = 421429360.

The previous prime is 421429357. The next prime is 421429381. The reversal of 421429361 is 163924124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 409657600 + 11771761 = 20240^2 + 3431^2 .

It is a cyclic number.

It is not a de Polignac number, because 421429361 - 2² = 421429357 is a prime.

It is not a weakly prime, because it can be changed into another prime (421429301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210714680 + 210714681.

It is an arithmetic number, because the mean of its divisors is an integer number (210714681).

Almost surely, 2^421429361 is an apocalyptic number.

It is an amenable number.

421429361 is a deficient number, since it is larger than the sum of its proper divisors (1).

421429361 is an equidigital number, since it uses as much as digits as its factorization.

421429361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The square root of 421429361 is about 20528.7447497405. The cubic root of 421429361 is about 749.7358245890.

The spelling of 421429361 in words is "four hundred twenty-one million, four hundred twenty-nine thousand, three hundred sixty-one".